dc.contributor.author | Montalbán Sánchez, Jon | |
dc.contributor.author | Velez Elordi, Manuel María | |
dc.contributor.author | Angulo Pita, Itziar | |
dc.contributor.author | Angueira Buceta, Pablo | |
dc.contributor.author | Wu, Yiyan | |
dc.date.accessioned | 2024-01-25T18:58:50Z | |
dc.date.available | 2024-01-25T18:58:50Z | |
dc.date.issued | 2014-06-01 | |
dc.identifier.citation | Electronic Letters 50 : 1102-1103 (2014) | es_ES |
dc.identifier.issn | 0013-5194 | |
dc.identifier.uri | http://hdl.handle.net/10810/64332 | |
dc.description.abstract | [EN] In orthogonal frequency division multiplexing (OFDM) signals, the usage of large size fast Fourier transforms (FFTs) reduces the guard interval percentage, and therefore increases the data throughput reducing the data overhead. In addition, for the same pilot pattern, the distance between adjacent pilots is smaller, which will improve the channel estimation. Nevertheless, up to now, they have not been considered for delivering mobile services as the inter-carrier interference (ICI) due to the Doppler effect is very critical. The main objective is to show that taking advantage of the latest improvements in error correction techniques, it is feasible to use large size FFTs for time-varying channels. Furthermore, there is also presented a theoretical estimation for quantifying the loss due to the ICI, and finally several simulation results that reinforce the idea that large OFDM symbols are suitable for mobile channels. | es_ES |
dc.description.sponsorship | This work has been financially supported in part by the University of the Basque Country UPV/EHU (UFI 11/30), by the Basque Government (IT-683–13 and SAIOTEK), by the Spanish Ministry of Science and Innovation under the project NG-RADIATE (TEC2009-14201), and by the Spanish Ministry of Economy and Competitiveness under the project HEDYT-GBB (TEC2012-33302). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | IET | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/TEC2012-33302 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICIN/TEC2009-14201 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.subject | fast Fourier transforms | es_ES |
dc.subject | OFDM modulation | es_ES |
dc.subject | intercarrier interference | es_ES |
dc.subject | Doppler effect | es_ES |
dc.subject | error correction | es_ES |
dc.subject | channel estimation | es_ES |
dc.subject | time-varying channels | es_ES |
dc.title | Large size FFTs over time-varying channels | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © The Institution of Engineering and Technology 2014 | es_ES |
dc.relation.publisherversion | https://ietresearch.onlinelibrary.wiley.com/doi/full/10.1049/el.2014.1301 | es_ES |
dc.identifier.doi | 10.1049/el.2014.1301 | |
dc.departamentoes | Ingeniería de comunicaciones | es_ES |
dc.departamentoes | Matemática aplicada | es_ES |
dc.departamentoeu | Komunikazioen ingeniaritza | es_ES |
dc.departamentoeu | Matematika aplikatua | es_ES |